ASTROSAT CZTI

Data Quality Report

Orbit 11019

Creation date: 2024-06-27T16:07:08.414115
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G08_046T09_9000001600_11019cztM0_level2.evt modeM0/AS1G08_046T09_9000001600_11019cztM0_level2_quad_clean.evt
Size (bytes)1,241,187,840163,514,880
Size1.2 GB 155.9 MB
Events in quadrant A12,972,355906,021
Events in quadrant B8,531,9061,064,609
Events in quadrant C5,773,5181,082,583
Events in quadrant D9,452,6661,017,517

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A048084930
B034148192
C02652486
D036966257

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02580
B02580
C02580
D02582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12663273321.582563%
B127478576.723151%
C12772970.759474%
D127347265.701272%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 13165 12726 2106 2106 16.00% 16.55%
B 13165 12800 395 395 3.00% 3.09%
C 13165 12815 0 0 0.00% 0.00%
D 13165 12797 510 510 3.87% 3.99%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 14 238 6964481 25463.35 1351 1321 273.5
A 8 5 770358 2812.27 1351 1321 273.5
A 14 254 20408 69.8 1351 1321 273.5
B 4 239 2610895 9158.56 1481 1447 284.9
B 0 214 79012 272.24 1481 1447 284.9
B 15 204 34721 116.78 1481 1447 284.9
C 13 61 11005 27.68 1479 1485 344.0
C 14 67 5250 10.95 1479 1485 344.0
C 14 234 3780 6.67 1479 1485 344.0
D 1 52 845895 2427.77 1449 1408 347.8
D 2 14 698020 2002.65 1449 1408 347.8
D 10 253 629444 1805.51 1449 1408 347.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter